| Message ID | 20200710172711.8059-2-den@openvz.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | block: add logging facility for long standing IO requests | expand |
10.07.2020 20:27, Denis V. Lunev wrote: > Right now BlockAcctStats is always reside on BlockBackend. This structure > is not used in any other place. Thus we are able to create a converter > from one pointer to another. > > Signed-off-by: Denis V. Lunev <den@openvz.org> > CC: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> > CC: Kevin Wolf <kwolf@redhat.com> > CC: Max Reitz <mreitz@redhat.com> > --- > block/block-backend.c | 5 +++++ > include/sysemu/block-backend.h | 1 + > 2 files changed, 6 insertions(+) > > diff --git a/block/block-backend.c b/block/block-backend.c > index 6936b25c83..e77a7e468e 100644 > --- a/block/block-backend.c > +++ b/block/block-backend.c > @@ -2143,6 +2143,11 @@ BlockAcctStats *blk_get_stats(BlockBackend *blk) > return &blk->stats; > } > > +BlockBackend *blk_stats2blk(BlockAcctStats *s) > +{ > + return container_of(s, BlockBackend, stats); > +} > + > void *blk_aio_get(const AIOCBInfo *aiocb_info, BlockBackend *blk, > BlockCompletionFunc *cb, void *opaque) > { > diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h > index 8203d7f6f9..bd4694e7bc 100644 > --- a/include/sysemu/block-backend.h > +++ b/include/sysemu/block-backend.h > @@ -227,6 +227,7 @@ void blk_add_insert_bs_notifier(BlockBackend *blk, Notifier *notify); > void blk_io_plug(BlockBackend *blk); > void blk_io_unplug(BlockBackend *blk); > BlockAcctStats *blk_get_stats(BlockBackend *blk); > +BlockBackend *blk_stats2blk(BlockAcctStats *stats); > BlockBackendRootState *blk_get_root_state(BlockBackend *blk); > void blk_update_root_state(BlockBackend *blk); > bool blk_get_detect_zeroes_from_root_state(BlockBackend *blk); > Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
diff --git a/block/block-backend.c b/block/block-backend.c index 6936b25c83..e77a7e468e 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -2143,6 +2143,11 @@ BlockAcctStats *blk_get_stats(BlockBackend *blk) return &blk->stats; } +BlockBackend *blk_stats2blk(BlockAcctStats *s) +{ + return container_of(s, BlockBackend, stats); +} + void *blk_aio_get(const AIOCBInfo *aiocb_info, BlockBackend *blk, BlockCompletionFunc *cb, void *opaque) { diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h index 8203d7f6f9..bd4694e7bc 100644 --- a/include/sysemu/block-backend.h +++ b/include/sysemu/block-backend.h @@ -227,6 +227,7 @@ void blk_add_insert_bs_notifier(BlockBackend *blk, Notifier *notify); void blk_io_plug(BlockBackend *blk); void blk_io_unplug(BlockBackend *blk); BlockAcctStats *blk_get_stats(BlockBackend *blk); +BlockBackend *blk_stats2blk(BlockAcctStats *stats); BlockBackendRootState *blk_get_root_state(BlockBackend *blk); void blk_update_root_state(BlockBackend *blk); bool blk_get_detect_zeroes_from_root_state(BlockBackend *blk);
Right now BlockAcctStats is always reside on BlockBackend. This structure is not used in any other place. Thus we are able to create a converter from one pointer to another. Signed-off-by: Denis V. Lunev <den@openvz.org> CC: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> CC: Kevin Wolf <kwolf@redhat.com> CC: Max Reitz <mreitz@redhat.com> --- block/block-backend.c | 5 +++++ include/sysemu/block-backend.h | 1 + 2 files changed, 6 insertions(+)